Rule 34 Dev - ambiguous_form ambiguous_gender animal_genitalia animal_penis anthro anus balls big_balls blush close-up duo genitals male penis penis_tip sheath sheath_sniffing smegma sniffing tail tail_anus ursine_penis kyain third-party_edit kuruk_(character) bear brown_bear canid canine canis grizzly_bear mammal ursine 1:1 hi_res|19240173610